.. index:: pair: group; Rx behavior with different descriptors number
.. _doxid-group__usecases-rx__desc__nb:

Rx behavior with different descriptors number
=============================================

.. toctree::
	:hidden:

	group_usecases-rx_desc_nb-run.rst

Given some descriptor count, verify queue setup and packet reception

The test sets up Rx queue with specified descriptors number checking reported limits. Tester side transmits a big packets burst to verify the number of packets IUT receives with respect to set up descriptors.

#. Prepare default config and mbuf pool

#. Prepare ``TEST_ETHDEV_CONFIGURED`` state

#. Set up Rx queue with specified number of Rx descriptors

#. Check number of descriptor in Rx queue info if supported

#. Prepare ``TEST_ETHDEV_STARTED`` state

#. Prepare **template** for test

#. Ensure that interface is UP on Tester side

#. Transmit and sniff nb_packets packets from **tst_if**

#. Receive packets on **iut_port**

Ivan Ilchenko `Ivan.Ilchenko@oktetlabs.ru <mailto:Ivan.Ilchenko@oktetlabs.ru>`__



.. rubric:: Parameters:

.. list-table::
	:widths: 20 80

	*
		- template

		- Traffic template

	*
		- nb_rxd

		- Rx descriptors number

|	:ref:`rx_desc_nb<doxid-group__usecases-rx__desc__nb-run>`